Question about 1986 Mitsubishi Mighty Max

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I don't think my truck is getting a full 12 volts during startup.

I don't think my truck is getting 12 volts during start up. It use to start immediately with just a click of the key and now it takes several times. Also, sometimes while I'm trying to start the engine I turn the key and the starter will just click, but after a couple more tries it will engage the starter again and turn the motor. It seems to turn the motor over at the normal rpm rate, but acts like a weak spark syndrom. I have replaced the coil with a better one and replaced the ignition switch also. 1986 Mits. Mighty Max and well maintained.

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The starter is at fault,the contacts are bad in the starter,and it is drawing to much amps from the ignition.

Posted on May 09, 2010


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How do I wire a 4-terminal solenoid for this truck? I do not understand what goes on the I and S terminals?

It depends on whether you are running a points or an HEI setup.

The ballast resistor is tied into the coil on a POINTS system, so that it supplies 9 volts to the coil when the motor is running. This lower voltage lengthens the life of the points. During starting however, the coil is fed a full 12 volts to make starting easier.

An HEI system has a full 12 volts fed to it when starting or running, because the switching transistors inside the HEI won't burn out like points will. This is why the two systems are wired differently.

The two small terminals on the starter solenoid are marked as R and S - which stand for Relay and Solenoid, which probably doesn't mean anything to you. SO, think of the two terminals this way - S stands for Start, R stands for Run.

The S terminal is for engaging the starter. The R terminal is for supplying high current battery voltage - to the coil and to the fuse panel. The R terminal is ONLY USED IN POINTS SYSTEMS - the HEI system has no need for it.

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1991 nissan stanza starter problems

Hi Jim.

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Hope this helps Good luck loringh PS Please leave a rating for me if appropriate Thks

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